Observation 202339: Porpidia albocaerulescens (Wulfen) Hertel & Knoph
When: 2015-04-05
No herbarium specimen

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Nice sequence
By: Jason Hollinger (jason)
2015-04-05 22:34:36 CDT (-0400)

And don’t forget the snails: they’ve been busy on some of these photos!

Death of a beauty
By: Andrew Khitsun (Andrew)
2015-04-05 21:44:38 CDT (-0400)

The first image might surprise the viewer – it doesn’t look anything like the species listed. While I have plenty of images of this species in its prime, this collection aims to show what happens when the thallii start to age, weather and eventually die: they get populated by other lichen, eaten by worms/snails or just fade away leaving behind only prothallus. In fact, there are light-colored rings scattered all over the boulders at Devil’s Lake that are prothallii from this species and also Aspicilia caesiocinerea – “ghost circles” as I call them.

Created: 2015-04-05 21:18:32 CDT (-0400)
Last modified: 2015-04-05 21:39:18 CDT (-0400)
Viewed: 36 times, last viewed: 2017-06-20 01:45:48 CDT (-0400)
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